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Google: Gemini 3.5 Flash vs OpenAI: GPT-5.4 Mini

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-12.

Google: Gemini 3.5 Flash OpenAI: GPT-5.4 Mini
Vendorgoogleopenai
Quality Score100100
Benchmark Score88.385.9
Input Price$1.50/M$0.75/M
Output Price$9.00/M$4.50/M
Context Window1,048,576400,000
Max Output65,536128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index91.380.7
ai_index_agentic100.097.1
ai_index_coding74.284.9

Who wins by task?

TaskGoogle: Gemini 3.5 FlashOpenAI: GPT-5.4 Mini
SQL Generation 170 171
Code Review 167 166
Code Completion 119 132
Code Refactoring 164 163
Bug Fixing 183 181
Code Documentation 142 142
Regex Writing 136 136
CI/CD Pipelines 144 144
Frontend Component Design 146 146
Data Analysis 172 171
CSV / Spreadsheet Cleanup 150 152
ETL Scripting 154 153
JSON Extraction 136 146
Bulk Data Labeling 123 133
OCR / Document Parsing 145 145
Table Extraction from PDFs 145 145
Long-Document Summarization 160 159
Short-Form Summarization 122 131
Blog Post Writing 140 140

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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